10. A consumer buying cooperative tested the effective heating area of 20 different electric space heaters with differen
Posted: Mon Jul 11, 2022 11:27 am
10. A consumer buying cooperative tested the effectiveheating area of 20 different electric space heaters with differentwattages. Here are the results.
a. Compute the correlation between the wattage and heating area. Is there a direct or an indirect relationship? (Round your answer to 4 decimal places.) The correlation of Wattage and Area is The link (relationship) is b. Conduct a test of hypothesis to determine if it is reasonable that the coefficient is greater than zero. Use the 0.050 significance level. (Round intermediate calculations and final answer to 3 decimal places.) Ho: P ≤ 0; H₁:p> 0 Reject He if t > 1.734 t=
Ho. It is not reasonable to say the population correlation is c. Develop the regression equation for effective heating based on wattage. (Negative value should be indicated by a minus sign. Round your answers to 3 decimal places.) The regression equation is: +
d. What heating area corresponds with a 1,500-watt heater? (Round your answers to 4 decimal places.) Heating area e. What is the 95% confidence interval of heating the area if the wattage is 1,500? (Round your answers to 4 decimal places.) ]
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Ho. It is not reasonable to say the population correlation is c. Develop the regression equation for effective heating based on wattage. (Negative value should be indicated by a minus sign. Round your answers to 3 decimal places.) The regression equation is: +
d. What heating area corresponds with a 1,500-watt heater? (Round your answers to 4 decimal places.) Heating area e. What is the 95% confidence interval of heating the area if the wattage is 1,500? (Round your answers to 4 decimal places.) ]